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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11980053 B1

PDFFull Text
Date of Patent:
May. 07, 2024

Filed:

Oct. 21, 2021

Light-emitting device, display device, imaging device, electronic device, and method for producing light-emitting device

Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Koji Ishizuya, Kanagawa, JP;

Hiroaki Sano, Kanagawa, JP;

Assignee:

Canon Kabushiki Kaisha, Tokyo, JP;

Attorney:

Venable LLP

Primary Examiner:

Victoria K Hall

Int. Cl.
CPC ...
H01L 51/52 (2006.01); H01L 51/56 (2006.01); H10K 50/844 (2023.01); H10K 50/852 (2023.01); H10K 50/856 (2023.01); H10K 50/86 (2023.01); H10K 71/00 (2023.01); H10K 50/858 (2023.01); H10K 59/38 (2023.01); H10K 59/88 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
H10K 50/856 (2023.02); H10K 50/844 (2023.02); H10K 50/852 (2023.02); H10K 50/86 (2023.02); H10K 50/865 (2023.02); H10K 71/00 (2023.02); H10K 50/858 (2023.02); H10K 59/38 (2023.02); H10K 59/88 (2023.02); H10K 2102/3026 (2023.02); H10K 2102/351 (2023.02);
Abstract

The light-emitting device has: a display region; a peripheral region; a first light-emitting element having a light-emitting region in which a lower electrode, a light-emitting layer, and an upper electrode are laminated; a first laminated section, between the substrate and the lower electrode of the first light-emitting element, in which there are laminated a first high-reflection layer and a first low-reflection layer that has a lower reflectance than the first high-reflection layer; a peripheral laminated section, in the peripheral region, in which there are laminated on the substrate; a peripheral lamination layer in which a peripheral high-reflection layer and a peripheral low-reflection layer that has a lower reflectance than the peripheral high-reflection layer are laminated. For at least a portion of the first laminated section that overlaps in plan view with the light-emitting region, the first low-reflection layer has an opening such that the first high-reflection layer is exposed.

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